The Magellan Wireless Back-Up Camera kit comes complete with a license plate mountable camera, transmitter, wireless receiver, vehicle power adapter, installation hardware, and instructions.

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And license-plate readers mounted on patrol cars scan traffic and parking lots, comparing a list of known stolen plate numbers to what the camera sees.

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After the camera system captured each driver's license plate, the bill for the toll would be assessed electronically, with the assistance of motor-vehicle departments from around the country.

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Beck was able to get his equipment down to about 30 pounds with the new dry-plate method, needing only an assistant or two to help carry the camera and a big wooden tripod up a mountain.

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The MTA has installed camera systems on the Hudson Bridge toll plaza, which enable the authority to capture the license-plate numbers of motorists who pass through.

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